Viton O'Ring Swells
Viton O'Ring Swells
(OP)
Under request of plant Operators we’re installing new closures to receive the pigs in our gas 8” pipeline (assume our gas is 5% pm and we have some condensate inside pipes that’s why pig procedures) that much more easier to operate than the oldies ones, but some strange phenomenon is taking place, the closure door o’ring, made of Viton, swells and go away from its seat along the spring ring that should fit it in place. My question is:
What could be happening ?
What could be happening ?





RE: Viton O'Ring Swells
You need to isolate what that substance is.
RE: Viton O'Ring Swells
RE: Viton O'Ring Swells
RE: Viton O'Ring Swells
I'll try to identify the substance but it's gonna be a little bit hard. What method to use do you suggest?
RE: Viton O'Ring Swells
Cheers DW
RE: Viton O'Ring Swells
We can analyze the gas for one substance each time then it's gonna take a long only with the ones we already know.
RE: Viton O'Ring Swells
Given you change out the o-rings, can you perform a chemical analysis of the o-ring you remove, and compare that to a new "unused" o-ring? That may speed up the process of finding out what is in the pipes.
RE: Viton O'Ring Swells
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Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: Viton O'Ring Swells
EdStainless, We cant get other supplier o'ring for testing 'cause we've made an US$180.000 purchase order and this supplier must proof that their viton's is not gonig to fail anymore. I wanna just to be one step ahead learn from you, expert guys.
Thanks to All
Luiz
Brazil
luizhenrique_99@yahoo.com
RE: Viton O'Ring Swells
rmw
RE: Viton O'Ring Swells
The website below has some pretty good data that might be of use.
http://www.gtweed.com/85256D3C0038D8DA/vwContentBy...
RE: Viton O'Ring Swells
http://www.sealseastern.com/Aflas.htm
This will not be cheap or easy, but it will work. I would hesitate to suggest that anyone spend the money for Afals, but if you are SE is the only place to go. They know more about formulation than anyone.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: Viton O'Ring Swells
RE: Viton O'Ring Swells